现在完成时句子结构及例句10条.现在完成时句子结构

现在完成时态英语名称：present perfect tense
现在完成时态会应用在已经完成的动作上，但必须要弄清楚的是，这个动作是发生在不确定的时间（已发生）。换句话说，在我们知道明确时间的时候，我们一般是不能够用现在完成时态的。例如，当我们想要表达这件事是发生在昨天，一年前，或是上个星期，我们会用过去时态，例如：when i was a child, i lived in Japan.

现在完成时态的Examples（例句）:

I have seen that movie twenty times.
I think I have met him once before.
There have been many earthquakes in California.
People have traveled to the Moon.
People have not traveled to Mars.
Have you read the book yet?
Nobody has ever climbed that mountain.
A: Has there ever been a war in the United States?
B: Yes, there has been a war in the United States.

【现在完成时的句型结构 】
①肯定句：主语+ have/has+ 过去分词
②否定句：主语+ have/has+ not+过去分词
③疑问句：Have/Has +主语+过去分词
Jared has been off work since last Thursdday.
.Jared上星期四之後就没来上班了.
He has been sick for a whole week!
他已经病了整整一个星期
I have not been back to * since 1997.
自1997年之後我就没再回香港了.
He left home at 18 and hasn't been back since.
他18歳就离开家,从那时起就没再回去过.
He has felt better since he stopped smoking.
他戒菸後就觉得好多了
Kevin has just moved here from Japan.
Kevin刚从日本搬来
Beth hasn't visited us lately.
Beth最近都没来看我们
My boss has told me several times that I will be getting a raise, but I haven't received one yet.
我老板跟我说了很多次要给我加薪, 但到现在一次没有
Have you ever eaten there?
你有在那里吃过吗?
O(∩_∩)O~

现在完成时的结构；助动词have /has + 动词的过去分词.He has been to Beijing.I have had supper .He has read the book.She has finished her homework.Jim has done his homework.He has finished the work.We ha...